The American Red Cross is expanding its assistance to Pakistan, sending relief supplies such as tarps, blankets and kitchen items, and mobilizing relief workers. To donate, call or go online and click "Donate" and "Support Pakistan Relief and Development."

After immediate needs are met, CRS plans cash-for-work projects that pay survivors for their labor on projects, such as irrigation channels, pathways and retaining walls that benefit whole communities. Call or donate online.

As flooding continues, MSF is increasing its support of hospitals and health centers, and is distributing clean water and relief items including sanitation equipment, drugs and logistical material. Click "Donate Now" or call, 24 hours a day.

Over the next three months, Oxfam and partners are working to reach more than 650,000 people with rescue services, clean water, sanitation kits and other essential aid. Call or donate online at Oxfam's Flood Relief and Recovery Efforts in Pakistan.

WFP, the world's largest humanitarian agency, plans to provide food to up to 6 million people in coming weeks. Donate online at http://https://usa.wfp.org/donate/pakistan or text the word "AID" to to 27722 to donate $10, automatically charged to your cellphone bill. Each $10 donation will provide emergency food for nine flood victims. Donors can also call toll-free at 866-929-1694.

The aid agency has already delivered food and water to more than 21,000 people and plans to distribute water purification packets, tents, food and other supplies to thousands more. Call or donate online.